They can see everything you write, and they record that unencrypted data. I should never have even tried this.

Has become very stupid. Makes incorrect "corrections" constantly, gets tense wrong, does not know words exist (it tried to correct 'withering' to 'dithering' for no reason). Used it for a while but have had to stop because it's irritating more than helping.

Does not work with custom server anymore.
Does not even send a request and then times out.
It works with 8.11.2 so I reverted to that one.

Edit:
8.13.2 also works, so seems like you introduced a problem when updating to 8.14 which seems to have been a major update.
I went with 8.11.2 first because that was the version that is currently still working in thunderbird.
Not really keen on making an account just to report it.

хорошо помогает в копирайтинге

The amount of times it suggests changing the tense to be incorrect is staggering. Sometimes I will accept its suggestion, then it immediately changes its mind and suggests I undo its suggestion. It also strongly suggests breaking sentences up to be grammatically incorrect. It is consistently dumb and only gets it right 50% of the time. I can't recommend it.

Pretty useless tbh gives dumb corrections to things that are mistakes in a different sentence structure. Used for dutch

Pretty handy. Pretty good.

Judicieuses corrections dotées de rapidité !

Breaks spell checking completely, now nothing is being spell check at all!

I required this extention to keep me on my toes while writing stories on twinery.org/2 , however although errors are highlighted I find it very difficult to activate the pop up that would allow me to correct them. That and when it does work it adds the new word to the existing word rather than overwiting it

seems really good. I like the idea of grammarly, but it has some issues. This seems very promising